A Psychologist Wants to Determine If There Is a Linear

Essay

A psychologist wants to determine if there is a linear relationship between the nun hours a person goes without sleep and the number of mistakes he/she makes on a : test. The following data is recorded.
a. Draw a scatter plot.
b. Determine the regression line equation and plot the regression line on the scatter plot.
$\begin{array} { c c } \text { Hours without Sleep, } \boldsymbol { x } & \text { Number of Mistakes, } y \\ 32 & 6 \\ 38 & 8 \\ 48 & 13 \\ 24 & 5 \\ 46 & 7 \\ 35 & 6 \\ 30 & 5 \\ 34 & 8 \\ 42 & 12 \end{array}$